基于视频图像处理提取夜间交通车辆完整轮廓的方法．通过梯度滤波消除路面反光的干扰，然后对经过预处理的相邻视频帧图像实行三帧差分分割运动区域。-Based on video image processing to extract the entire outline of the vehicle nighttime traffic methods. Reflective pavement through gradient filter to eliminate the interference, and then pretreated adjacent video frames to implement three differential split sport zone.